US4431591AExpiredUtility
24-Nor-1,4-choladiene-3,22-dione
Est. expiryAug 10, 2001(expired)· nominal 20-yr term from priority
C12P 33/005C07J 9/00
25
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0
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2
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1
Claims
Abstract
The subject invention concerns a novel fermentation process for making the useful steroid intermediate 24-nor-1,4-choladiene-3,22-dione (I). Compound (I) can be converted to valuable corticoids by known methods.
Claims
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1. A novel compound of the formulaCited by (0)
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